Answer:
C. Is it the most unusual living creature in the area?
Step-by-step explanation:
C. Is it the most unusual living creature in the area? It can't be answered through scientific investigation because it is a subjective question with no objective method to measure it. The other questions like "Is the creature a plant or an animal?", "Is the creature native to these parts, or has it been introduced into the area?" and "What does the creature feed on?" can be answered through scientific investigation by studying the creature's characteristics and genetic makeup and observing its behavior in the ecosystem.